brushless combos and tyre advice needed

[st1vo]

OK,

I'm getting well into my new mad rat! (2wd buggy)

I have a cheapish 40A orion vortex sensorless buggy combo bl setup with powerful 7.4v lipos. I've scrubbed the rear tyres in 3 charges!

The motor end cap came off the can today, absolute garbage, I'm on orions case!!

1st Q: What are the best all round grass/muck/tarmac tyres for bashing?

2nd Q: I have an xcelorin 4800kv sensorless combo from a speed T that I could try but I'm also considering buying an Lrp Ai Pro Reverse/Eraser brushless sensored combo.9.5T

What does everyone think?

Any experience of the above and your comments will be valued!!